SamsungMZ-75E120B
SamsungMZ-7PD128BW

Controller: Samsung Dual Core MGX. Memory: Samsung 40nm TLC V-NAND. Release date: Q4 2014.

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC. Release date: Q4 2012.

Real World Speed
Performance profile from 90,817 user samples
58,501 User Benchmarks
Best Bench: 114% 50GB free
Worst Bench: 65% 17GB free (System drive)
Poor: 65% Great: 114%
SPEED RANK: 244th / 1040
32,316 User Benchmarks
Best Bench: 109% 119GB free
Worst Bench: 59% 50GB free (System drive)
Poor: 59% Great: 109%
SPEED RANK: 323rd / 1040
Effective Speed
Effective SSD Speed
96.1 % Slightly faster effective speed.
+9%
88.4 %
Read
Avg. Sequential Read Speed
461 MB/s +4% 444 MB/s
Write
Avg. Sequential Write Speed
425 MB/s Faster write speed.
+30%
327 MB/s
4K Read
Avg. 4K Random Read Speed
38.8 MB/s Faster random read.
+27%
30.6 MB/s
4K Write
Avg. 4K Random Write Speed
93.6 MB/s Faster random write.
+15%
81.1 MB/s
Mixed
Avg. Sequential Mixed IO Speed
355 MB/s Much faster mixed IO speed.
+35%
263 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
49.8 MB/s Much faster random mixed IO.
+40%
35.6 MB/s
SusWrite
Avg. Sustained Write Speed
166 MB/s 279 MB/s Much faster sustained write speed.
+68%
Read
Peak Sequential Read Speed
507 MB/s +2% 498 MB/s
Write
Peak Sequential Write Speed
490 MB/s Faster peak write speed.
+10%
445 MB/s
4K Read
Peak 4K Random Read Speed
47.2 MB/s Faster peak random read.
+29%
36.6 MB/s
4K Write
Peak 4K Random Write Speed
124 MB/s Slightly faster peak random write.
+8%
115 MB/s
Mixed
Peak Sequential Mixed IO Speed
415 MB/s Faster peak mixed IO speed.
+25%
331 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
62.2 MB/s Much faster peak random mixed IO.
+41%
44.2 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
188 MB/s 439 MB/s Hugely faster peak sustained write speed.
+134%
Market Share
Based on 38,048,616 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.14 % Hugely higher market share.
+133%
0.06 %
Value
Value For Money
8.65 % Much better value.
+78%
4.86 %
User Rating
UBM User Rating
58 % Slightly more popular.
+7%
54 %
Price
Price (score)
$78 Much cheaper.
+51%
$160
Age
Newest
73 Months More recent.
+26%
99 Months
DQ Read
Peak 4K-64Thread Read Speed
386 MB/s +2% 377 MB/s
DQ Write
Peak 4K-64Thread Write Speed
361 MB/s Faster peak deep queue write.
+10%
328 MB/s
AS-SSD Total
AS-SSD Total Score
1,283 Pts Slightly stronger server IO.
+7%
1,198 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
362 MB/s Hugely faster peak deep queue mixed IO.
+134%
155 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
337 MB/s Slightly faster deep queue read.
+5%
320 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
297 MB/s Faster deep queue write.
+27%
233 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
303 MB/s Hugely faster deep queue mixed IO.
+150%
121 MB/s
Capacity
Capacity
120GB 128GB
ADVERTISEMENT

The 128GB 840 Pro is a rock solid performer. On release, nearly a year and a half ago, the Pro smashed several speed records. Today, with sequential read/write speeds of 519/438 MBps, the Pro is still one of the fastest SSDs available. One of the Pro's top competitors is Samsungs own, newer 840 Evo. Looking at a raw synthetic speed comparison of the 128GB Pro and Evo is a little misleading. On the face of it the Pro only has a marginal lead over the Evo. This due to the fact that the Evo can only maintain its burst write speed for transfers of up to 3GB, the size of its SLC cache. The Pro on the other hand can sustain higher throughputs indefinitely. The Pro also utilizes MLC which is rated for far more erase cycles than the TLC used in the Evo. Server IO is often continuous and would quickly exhaust the 3GB cache on the Evo but for typical consumer use the Evo will remain within the SLC cache most of the time. [Feb '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) January 2021 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]

ADVERTISEMENT

Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-10600K $257Nvidia RTX 3060-Ti $400Crucial MX500 250GB $47
Intel Core i5-9600K $200Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i5-10400F $161Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $40
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $29Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback